<?php
// +----------------------------------------------------------------------
// | ThinkCMF [ WE CAN DO IT MORE SIMPLE ]
// +----------------------------------------------------------------------
// | Copyright (c) 2013-2018 http://www.thinkcmf.com All rights reserved.
// +----------------------------------------------------------------------
// | Author: 小夏 < 449134904@qq.com>
// | Date: 2019/03/15
// | Time:上午 10:32
// +----------------------------------------------------------------------
namespace plugins\xiongyi\lib;

class WechatOauth2 extends Oauth2
{
    /**
     * 获取requestCode的api接口
     * @var string
     */
    protected $getRequestCodeURL = 'https://open.weixin.qq.com/connect/qrconnect';

    /**
     * 获取access_token的api接口
     * @var string
     */
    protected $getAccessTokenURL = 'https://api.weixin.qq.com/sns/oauth2/access_token';

    /**
     * 获取request_code的额外参数,可在配置中修改 URL查询字符串格式
     * @var string
     */
    protected $authorize = 'scope=snsapi_login&state=STATE';

    /**
     * API根路径
     * @var string
     */
    protected $apiBase = 'https://api.weixin.qq.com/';


    /**
     * 组装接口调用参数 并调用接口
     * @param  string $api    微博API
     * @param  string $param  调用API的额外参数
     * @param  string $method HTTP请求方法 默认为GET
     * @param bool    $multi
     * @return mixed
     * @throws \Exception
     */
    public function call($api, $param = '', $method = 'GET', $multi = false)
    {
        $params = [
            'access_token' => $this->token['access_token'],
            'openid'       => $this->token['openid'],
        ];

        //获取用户个人信息（UnionID机制）
        $data = $this->http($this->url($api), $this->param($params, $param), $method);
        return json_decode($data, true);
    }

    /**
     * 解析access_token方法请求后的返回值
     * @param JSON $data 获取access_token的方法的返回值
     * @param      $extend
     * @return mixed
     * @throws \Exception
     */
    protected function parseToken($data, $extend)
    {
        $data = json_decode($data, true);
        if (!empty($data['access_token']) && !empty($data['expires_in'])) {
            $this->token    = $data;
            $data['openid'] = $this->openid();
            return $data;
        } else {

            throw new \Exception('获取微信 ACCESS_TOKEN 出错：' . json_encode($data));
        }
    }

    /**
     * 获取当前授权应用的openid
     * @return string
     * @throws \Exception
     */
    public function openid()
    {
        $data = $this->token;
        if (isset($data['openid'])) {
            return $data['openid'];
        } else {
            throw new \Exception('没有获取到openid！');
        }
    }
}